SE7709427L - PROCEDURE FOR MANUFACTURE OF DOUBLE-WALL PLASTERS - Google Patents
PROCEDURE FOR MANUFACTURE OF DOUBLE-WALL PLASTERSInfo
- Publication number
- SE7709427L SE7709427L SE7709427A SE7709427A SE7709427L SE 7709427 L SE7709427 L SE 7709427L SE 7709427 A SE7709427 A SE 7709427A SE 7709427 A SE7709427 A SE 7709427A SE 7709427 L SE7709427 L SE 7709427L
- Authority
- SE
- Sweden
- Prior art keywords
- wall
- manufacture
- double
- openings
- procedure
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/18—Double-walled pipes; Multi-channel pipes or pipe assemblies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/0015—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor specially adapted for perforating tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/0015—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor specially adapted for perforating tubes
- B26F1/0053—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor specially adapted for perforating tubes by machining, e.g. cutting, grinding, projections on the tube wall
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/0015—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor specially adapted for perforating tubes
- B26F1/0061—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor specially adapted for perforating tubes whereby the tube moves axially or radially
- B26F1/0069—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor specially adapted for perforating tubes whereby the tube moves axially or radially and the tool travels with the tube
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/11—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels comprising two or more partially or fully enclosed cavities, e.g. honeycomb-shaped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/13—Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/303—Extrusion nozzles or dies using dies or die parts movable in a closed circuit, e.g. mounted on movable endless support
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/0015—Making articles of indefinite length, e.g. corrugated tubes
- B29C49/0021—Making articles of indefinite length, e.g. corrugated tubes using moulds or mould parts movable in a closed path, e.g. mounted on movable endless supports
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/22—Corrugating
- B29C53/30—Corrugating of tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2793/00—Shaping techniques involving a cutting or machining operation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2793/00—Shaping techniques involving a cutting or machining operation
- B29C2793/0045—Perforating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/0015—Making articles of indefinite length, e.g. corrugated tubes
- B29C49/0029—Making articles of indefinite length, e.g. corrugated tubes wherein the process is characterised by the pressure used, e.g. using varying pressure depending on sequence of cavity shapes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/0015—Making articles of indefinite length, e.g. corrugated tubes
- B29C49/003—Making articles of indefinite length, e.g. corrugated tubes wherein the process is characterised by temperature conditioning, e.g. using inside cooling by air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/006—Blow-moulding plants, e.g. using several blow-moulding apparatuses cooperating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2016/00—Articles with corrugations or pleats
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/18—Pleated or corrugated hoses
- B29L2023/186—Pleated or corrugated hoses having a smooth internal wall
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Manufacturing & Machinery (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
In the manufacture of double-wall plastic tubing in which the outer wall has transverse corrugations and the inner wall is smooth, in the case of annular transverse corrugations the air pressure between the two walls cannot be balanced with the external air pressure, resulting in deformations of the inner tube. To permit an equilibrium of pressure before the inner wall hardens, openings are pierced in the outer wall or openings are produced between the two walls for communication between the inner chambers of the transverse corrugations. After the hardening of the inner tube, these openings are reclosed by fusion.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2637995A DE2637995C2 (en) | 1976-08-24 | 1976-08-24 | Process for the production of double-walled plastic pipes with an annularly corrugated outer wall and a smooth inner wall |
Publications (2)
Publication Number | Publication Date |
---|---|
SE7709427L true SE7709427L (en) | 1978-02-25 |
SE422760B SE422760B (en) | 1982-03-29 |
Family
ID=5986188
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7709427A SE422760B (en) | 1976-08-24 | 1977-08-22 | PROCEDURE FOR MANUFACTURING DOUBLE WALL PLASTICS WITH ANNUAL CORRUGGED OUTWALL AND DELETED INNER WALL |
Country Status (28)
Country | Link |
---|---|
US (2) | US4145387A (en) |
JP (1) | JPS6028656B2 (en) |
AT (1) | AT366315B (en) |
AU (1) | AU506193B2 (en) |
BE (1) | BE858036A (en) |
BR (1) | BR7705605A (en) |
CA (1) | CA1061726A (en) |
CH (1) | CH622984A5 (en) |
CS (1) | CS196373B2 (en) |
DD (1) | DD132728A5 (en) |
DE (1) | DE2637995C2 (en) |
DK (1) | DK375477A (en) |
ES (1) | ES460822A1 (en) |
FI (1) | FI64074C (en) |
FR (1) | FR2362715A1 (en) |
GB (1) | GB1525450A (en) |
GR (1) | GR63991B (en) |
HU (1) | HU175927B (en) |
IN (1) | IN148290B (en) |
IT (1) | IT1117833B (en) |
NL (1) | NL7707369A (en) |
NO (1) | NO772572L (en) |
NZ (1) | NZ184598A (en) |
PL (1) | PL110500B1 (en) |
SE (1) | SE422760B (en) |
SU (1) | SU708992A3 (en) |
TR (1) | TR19812A (en) |
YU (1) | YU201477A (en) |
Families Citing this family (62)
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DE2840174A1 (en) | 1978-09-15 | 1980-03-20 | Oltmanns Ziegelwerk | PLASTIC PIPE |
IL55798A0 (en) * | 1978-10-25 | 1978-12-17 | Drori Mordeki | Fluid distribution devices particularly useful for drip irrigation and mathod and apparatus for making same |
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JPS5844583U (en) * | 1981-09-18 | 1983-03-25 | 金尾 史朗 | Synthetic resin corrugated double pipe |
US4500284A (en) * | 1983-09-16 | 1985-02-19 | Lupke Manfred Arno Alfred | Forming single wall bells in double wall pipe |
JPS60136689A (en) * | 1983-12-24 | 1985-07-20 | 鳥居化成株式会社 | Multiple pipe and manufacture thereof |
US4846660A (en) * | 1984-07-18 | 1989-07-11 | Contech Construction Products Inc. | Apparatus for producing double wall pipe |
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JPS6199788A (en) * | 1984-10-22 | 1986-05-17 | 金尾 史朗 | Pressure-resistant spiral pipe for underground burying |
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US3994646A (en) * | 1974-01-25 | 1976-11-30 | Frankische Isolierrohr-Und Metallwaren Werke Gebr. Kirchner | Apparatus for producing double-walled tubes of plastic material |
FR70398E (en) * | 1974-03-22 | 1959-04-06 | Electronique & Physique | Improvements in television and cinematography cameras |
FR69963E (en) * | 1974-03-22 | 1959-01-30 | Onera (Off Nat Aerospatiale) | Apparatus for counting records |
DE2413877C3 (en) * | 1974-03-22 | 1979-02-01 | Hegler, Wilhelm, 8730 Bad Kissingen | Extrusion head for continuously sheathing a pipe or cable |
US4037626A (en) * | 1975-09-15 | 1977-07-26 | Standard Oil Company (Indiana) | High strength composite pipe structure having leakproof joints |
US4010298A (en) * | 1975-12-03 | 1977-03-01 | Angle William M | Underground irrigation devices and methods of making and using the same |
-
1976
- 1976-08-24 DE DE2637995A patent/DE2637995C2/en not_active Expired
-
1977
- 1977-06-24 GR GR53791A patent/GR63991B/en unknown
- 1977-06-29 AT AT0463977A patent/AT366315B/en not_active IP Right Cessation
- 1977-07-04 NL NL7707369A patent/NL7707369A/en not_active Application Discontinuation
- 1977-07-04 CS CS774429A patent/CS196373B2/en unknown
- 1977-07-05 IN IN1011/CAL/77A patent/IN148290B/en unknown
- 1977-07-11 NZ NZ184598A patent/NZ184598A/en unknown
- 1977-07-14 GB GB29649/77A patent/GB1525450A/en not_active Expired
- 1977-07-14 CH CH872777A patent/CH622984A5/de not_active IP Right Cessation
- 1977-07-16 ES ES460822A patent/ES460822A1/en not_active Expired
- 1977-07-19 NO NO772572A patent/NO772572L/en unknown
- 1977-07-25 AU AU27269/77A patent/AU506193B2/en not_active Expired
- 1977-08-01 FI FI772332A patent/FI64074C/en not_active IP Right Cessation
- 1977-08-02 IT IT83627/77A patent/IT1117833B/en active
- 1977-08-10 SU SU772512604A patent/SU708992A3/en active
- 1977-08-11 US US05/823,778 patent/US4145387A/en not_active Expired - Lifetime
- 1977-08-16 CA CA284,771A patent/CA1061726A/en not_active Expired
- 1977-08-18 TR TR19812A patent/TR19812A/en unknown
- 1977-08-22 YU YU02014/77A patent/YU201477A/en unknown
- 1977-08-22 HU HU77HE751A patent/HU175927B/en unknown
- 1977-08-22 DD DD7700200676A patent/DD132728A5/en unknown
- 1977-08-22 PL PL1977200414A patent/PL110500B1/en unknown
- 1977-08-22 SE SE7709427A patent/SE422760B/en not_active IP Right Cessation
- 1977-08-23 BE BE180373A patent/BE858036A/en not_active IP Right Cessation
- 1977-08-23 BR BR7705605A patent/BR7705605A/en unknown
- 1977-08-23 JP JP52101013A patent/JPS6028656B2/en not_active Expired
- 1977-08-24 DK DK375477A patent/DK375477A/en not_active Application Discontinuation
- 1977-08-24 FR FR7725872A patent/FR2362715A1/en active Granted
-
1980
- 1980-06-02 US US06/155,899 patent/US4303104A/en not_active Expired - Lifetime
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